Calculate ∆tHo and ∆tUo at 298 K

Calculate ∆tHo and ∆tUo at 298 K and ∆Ho at 348 K for the hydrogenation of ethyne (acetylene) to ethene (ethylene) from the enthalpyof combustion and heat capacity data in Tables 2.5 and 2.7. Assume the heat capacities to be constant over the temperature range involved.